style: format plugin xml file

Author: ath0mas

plugin.xml

@@ -34,17 +34,16 @@
     </config-file>
 
     <header-file src="src/ios/GalleryRefresh.h" />
-    <source-file src="src/ios/GalleryRefresh.m" compiler-flags="-fno-objc-arc"/>
+    <source-file src="src/ios/GalleryRefresh.m" compiler-flags="-fno-objc-arc" />
 
     <preference name="CAMERA_USAGE_DESCRIPTION" default="Use the camera" />
     <config-file target="*-Info.plist" parent="NSCameraUsageDescription">
-        <string>$CAMERA_USAGE_DESCRIPTION</string>
+      <string>$CAMERA_USAGE_DESCRIPTION</string>
     </config-file>
 
     <preference name="PHOTOLIBRARY_USAGE_DESCRIPTION" default="Use the photo library" />
     <config-file target="*-Info.plist" parent="NSPhotoLibraryUsageDescription">
-        <string>$PHOTOLIBRARY_USAGE_DESCRIPTION</string>
+      <string>$PHOTOLIBRARY_USAGE_DESCRIPTION</string>
     </config-file>
-
   </platform>
 </plugin>